If P&C Insurance Company faces a challenge when their treasury system needs a new interface to a software as a service application. They need a suggestion for configuration for how the system and the application can work together. The work presented in this report is a suggestion for how you can make business configuration of an IT-based Treasury System in general. The exact configuration for the case received from If is presented as a separate report, found in Appendix A and is called the If-report. The If-report presents the suggested technical set-up of the configuration. It is not company specific but system and application specific. The work made in that report will be a standard in future version of the treasury system. The work made in this report is presented to the Royal Institute of Technology and can work as an example of how to approach a business configuration that needs to be done in an IT-based Treasury System.